23987013120 has 360 divisors, whose sum is σ = 96641385984. Its totient is φ = 5482487808.

The previous prime is 23987013097. The next prime is 23987013131. The reversal of 23987013120 is 2131078932.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1118337 + ... + 1139583.

Almost surely, 2^23987013120 is an apocalyptic number.

23987013120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23987013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48320692992).

23987013120 is an abundant number, since it is smaller than the sum of its proper divisors (72654372864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23987013120 is a wasteful number, since it uses less digits than its factorization.

23987013120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21290 (or 21264 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 23987013120 in words is "twenty-three billion, nine hundred eighty-seven million, thirteen thousand, one hundred twenty".